There seems to be an incident like this in the news every couple of days.
Pretty soon, if you call the police you will very likely be charged with conspiracy to commit murder.
“While the rate of police officers officially charged with murder is only 1.06% higher than the current general population murder rate, if excessive force complaints involving fatalities were prosecuted as murder the murder rate for law enforcement officers would exceed the general population murder rate by 472%.”
- CATO Institute 2010 Annual Report
http://www.policemisconduct.net/statistics/2010-annual-report/